Use a reverse Google Image Search to find out more about the photos you find online.
1. Go to images.google.com/
2. Click the camera icon to search by image
3. Paste the image URL OR upload the image
4. Find...
1. Download the Chrome app to your device
2. Use the Chrome app to find an image
3. Tap the image to open a bigger version
4. Tap and hold the image. In the box that appears, tap Search Google for this image.